CAJ | 학술논문

为获得低速工况下的汽车动力性检测指标，完善发动机实际功率检测理论模型，基于BY-CG-300底盘测功机，以HG7153AB(VETC)型汽车为试验车辆进行了整车动力性试验。根据试验数据，利用最小二乘法求得试验车辆驱动轮输出功率曲线，并建立了轿车低速测功修正系数的数学模型，得到修正系数方程，由此提出了在较低测试速度下判断汽车动力性技术状况的测试方法和相关的数学模型，实现了轿车在低速下进行动力性检测的目标。
위획득저속공황하적기차동력성검측지표，완선발동궤실제공솔검측이론모형，기우BY-CG-300저반측공궤，이HG7153AB(VETC)형기차위시험차량진행료정차동력성시험。근거시험수거，이용최소이승법구득시험차량구동륜수출공솔곡선，병건립료교차저속측공수정계수적수학모형，득도수정계수방정，유차제출료재교저측시속도하판단기차동력성기술상황적측시방법화상관적수학모형，실현료교차재저속하진행동력성검측적목표。
To obtain vehicle low-speed dynamic property test index and perfect engine real power test theoretical model, vehicle modeled HG7153AB (VETC) is chosen for vehicle dynamic property test based on BY-CG-300 chassis dynamometer. According to the test data, the driving wheel output power curve has been obtained by using the least square method, and a correction factor mathematical model has been established for low-speed vehicle dynamic property test. The correction factor equation is obtained, therefore a test method and relevant mathematical model to evaluate vehicle dynamic property conditions in low test speed is proposed, and vehicle low-speed dynamic property objective has been achieved.